Condensed Consolidating Financial Information (Schedule Of Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Net cash provided by (used in) operating activities - continuing operations	$ 195,646	$ 213,722
Net cash used in investing activities - continuing operations	(465,039)	(352,067)
Net cash provided by (used in) financing activities - continuing operations	126,158	(41,521)
Net cash provided by (used in) discontinued operations	(5,582)	131,099
Net increase (decrease) in cash and cash equivalents	(148,817)	(48,767)
Cash and Cash Equivalents, Beginning of Period	157,439	52,614
Cash and Cash Equivalents, End of Period	8,622	3,847
Parent Company [Member]
Net cash provided by (used in) operating activities - continuing operations	(122,961)	4,319
Net cash used in investing activities - continuing operations	(146,432)	(142,476)
Net cash provided by (used in) financing activities - continuing operations	126,158	(41,521)
Net cash provided by (used in) discontinued operations	(5,582)	131,618
Net increase (decrease) in cash and cash equivalents	(148,817)	(48,060)
Cash and Cash Equivalents, Beginning of Period	157,439	51,894
Cash and Cash Equivalents, End of Period	8,622	3,834
Combined Guarantor Subsidiaries [Member]
Net cash provided by (used in) operating activities - continuing operations	318,607	209,403
Net cash used in investing activities - continuing operations	(464,288)	(428,774)
Net cash provided by (used in) financing activities - continuing operations	145,681	219,183
Net cash provided by (used in) discontinued operations	0	0
Net increase (decrease) in cash and cash equivalents	0	(188)
Cash and Cash Equivalents, Beginning of Period	0	201
Cash and Cash Equivalents, End of Period	0	13
Combined Non-Guarantor Subsidiaries [Member]
Net cash provided by (used in) operating activities - continuing operations	0	0
Net cash used in investing activities - continuing operations	(21,554)	0
Net cash provided by (used in) financing activities - continuing operations	21,554	0
Net cash provided by (used in) discontinued operations	0	(519)
Net increase (decrease) in cash and cash equivalents	0	(519)
Cash and Cash Equivalents, Beginning of Period	0	519
Cash and Cash Equivalents, End of Period	0	0
Eliminations [Member]
Net cash provided by (used in) operating activities - continuing operations	0	0
Net cash used in investing activities - continuing operations	167,235	219,183
Net cash provided by (used in) financing activities - continuing operations	(167,235)	(219,183)
Net cash provided by (used in) discontinued operations	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and Cash Equivalents, Beginning of Period	0	0
Cash and Cash Equivalents, End of Period	$ 0	$ 0